| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydraulic control device equipped with an electromagnetic three-way valve, ensuring a small number of components, a small number of assembly processes, and low cost.SOLUTION: A solenoid portion 37 of an electromagnetic three-way valve 13 includes a yoke 84 constituted by a bottomed cylindrical main yoke 85 and an auxiliary yoke 86 closing an open end of the main yoke 85, and attached to a valve body 14; a coil assembly 89 within the yoke 84; a fixed core 95 slidably fitted into a bobbin hollow portion and abutting on a main yoke ceiling wall 85a; a movable core 97 disposed to face the fixed core 95 and passing through the auxiliary yoke 86; and a coil spring 100 provided between the two cores 95 and 97 in a contracted state, the fixed core 95 being closely attached to the ceiling wall 85a by a set load applied to the fixed core 85 from the coil spring 100 and an attraction force between the fixed core 85 and the ceiling wall 85a based on current-carrying to a coil 88, and a valve rod 78 being slidably supported in an accommodation hole 24 of the valve body 14 so that one end of the valve rod 78 separably abuts on an outer end of the movable core 97 and the other end thereof connected to a valve element 40. |
